Proper noun
Proto-Tocharian
(linguistics) The reconstructed ancestor of the Tocharian languages.
A common Proto-Tocharian language must precede the attested languages by several centuries, probably dating to the 1st millennium BC. Source: Internet
Despite the apparent equivalence between the Tocharian A and B vowel systems, in fact a number of vowels are not cognate between the two varieties, and Proto-Tocharian had a different vowel system from either. Source: Internet
If necessary, impossible consonant sequences are rectified as in Tocharian A. Consonants The following are the main changes between PIE and Proto-Tocharian: * Centum change: PIE "palatals" merge with PIE "plain velars". Source: Internet
A number of umlaut processes occurred in the Proto-Tocharian period, which tended to increase the number of rounded vowels. Source: Internet
For example, the sound a did not occur in Proto-Tocharian. Source: Internet
In general, Ringe's Proto-Tocharian reconstruction reflects an earlier stage than the one described by many researchers. Source: Internet